To deal with greater demand, Horton Williams Airport from problem 1 has opened a second runway devoted just to planes taking off. Peak demand has now been bumped up to 15 planes per hour. Furthermore, each plane still takes about 5 minutes to position itself and take off once it has been given the go-ahead.
a. On average, how many planes will be waiting during peak time periods? How many will be in the system (i.e., waiting and on the runway)?
b. How long, on average, will a plane have to wait before it is allowed to take off?